Revision March 1,2022

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For technical questions, contact: tech@unsemi.com.tw

ROHS

Thyristor Surge Suppressors (TSS)

Specifications are subject to change without notice.

Please refer to www.unsemi.com.tw for current information.

Thermal Considerations

3/5

Characteristic Curves

Figure 2 - tr × td Pulse Waveform

Figure 1 - V- I Characteristics

Figure 3 - Normalized VS Change Versus

Junction Temperature

IS

lDRM

IH

IT

+I

-I

VS

VDRM

Vτ

+V

- V

tr=rise time to peak value

td=decay time to half value

Half Value

0

50

100

tr

td

t – Time (μs)

Peak

Value

Waveform=tr×td

25℃

-40 -20 0

20 40 60 80 100 120 140 160

-8

-6

-4

0

2

4

6

8

10

12

14

Junction Temperature (TJ) - ℃

Figure 4 - Normalized DC Holding Current

Versus Case Temperature

25℃

-40 -20 0

20 40 60 80 100 120 140 160

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

Case Temperature (TC) - ℃

Package

Symbol

Parameter

Value

Unit

TJ

TS

RθJA

Operating Junction Temperature Range

Storage Temperature Range

Thermal Resistance: Junction to Ambient

SOD-123FL

- 40 to +125

- 60 to +150

90

°C

°C

°C/W

@10/700μS，2KV

PXXXXDM Series SOD-123FL(SMF)